What is the circumference of a circle with a radius of 4 inches?

2.512

Step-by-step explanation:

the equation for circumference of a circle is

2(pi)r

plug in the 4

2(pi)4

combine like terms

8(pi)

you can leave the answer as is or you can multiply

8(3.14)= 2.512

the answer would be 2.512

***pi is equal to 3.14, if you are not allowed to keep your answer in terms of pi there is a pi button on the calculator you can use, or simply plug in 3.14

i think the answer is .36

step-by-step explanation:

what i did was only 2.88 divided by 8

the answer is: d) o, f, and kr.

atomic radius of bromine (br) is 114 pm.

atomic radius of oxygen (o) is 73 pm.

atomic radius of fluorine (f) is 72 pm.

atomic radius of krypron (kr) is 112 pm.

the atomic radius of a chemical element is a measure of the size of its atom.

the atomic radius varies with increasing atomic number, but usually increases because of increasing of number of electrons.

the atomic radius decreases across the periods because an increasing number of protons, because greater attraction between the protons and electrons.